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Scientia Silvae Sinicae ›› 2013, Vol. 49 ›› Issue (12): 108-113.doi: 10.11707/j.1001-7488.20131216

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Models for Predicting the Hourly Fuel Moisture Content on the Forest Floor of Birch Stands in Tahe Forestry Bureau

Yu Hongzhou, Jin Sen, Di Xueying   

  1. College of Forestry, Northeast Forestry University Harbin 150040
  • Received:2013-04-08 Revised:2013-10-24 Online:2013-12-25 Published:2014-01-01

Abstract:

Accurately prediction of the dead fuel moisture content on the forest floor is very important for fire behavior forecast and fire danger rating estimation. Dynamics of hourly moisture content of the surface fine dead fuels under birch (Betula platyphylla) stand in Tahe Forestry Bureau, Daxing'anling Region, Heilongjiang Province, China was modeled using direct timelag methods with Nelson and Simard equilibrium moisture content models and a meteorological variable regression method. The mean absolute error of Nelson(1.01%~1.17%) and Simard(1.06%~1.39%)were lower than that of meteorological variable regression method(1.62%~3.01%), which indicated that hourly prediction of fuel moisture by the direct timelag methods would be applicable to the region.

Key words: birch, dead fuel on the forest floor, moisture content, prediction model

CLC Number: